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Mathematics, 30.01.2020 08:06 jennychrin95

Arecent survey of 8,000 high school students found that the mean price of a prom dress was $195.00 with a standard deviation of $12.00. alyssa thinks that her school is more fashion conscious and spent more than $195.00. she collected data from 20 people in her high school and found that the average price spent on a prom dress was $208.00. which of the following is the correct z-statistic for this situation?

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Arecent survey of 8,000 high school students found that the mean price of a prom dress was $195.00 w...
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